Datasheet

ADP5041 Data Sheet
Rev. 0 | Page 4 of 40
Parameter Min Typ Max Unit Test Conditions/Comments
WATCHDOG INPUT
Watchdog Timeout Period
Option 0 81.6 102 122.4 ms
Option 1 1.28 1.6 1.92 sec
WDI Pulse Width 80 ns V
IL
= 0.4 V, V
IH
= 1.2 V
WDI Input Threshold 0.4 1.2 V
WDI Input Current (Source) 8 15 20 µA V
WDI
= V
CC
, time average
WDI Input Current (Sink) −30 −25 −15 µA V
WDI
= 0 V, time average
MANUAL RESET INPUT
MR Input Pulse Width
1 µs
MR Glitch Rejection
220 ns
MR Pull-Up Resistance
25 52 90 kΩ
MR to Reset Delay
280 Ns V
CC
= 5 V
BUCK SPECIFICATIONS
AVIN, VIN1 = 2.3 V to 5.5 V; V
OUT1
= 1.8 V; L = 1 µH; C
IN
= 10 µF; C
OUT
= 10 µF; T
J
= −40°C to +125°C for minimum/maximum
specifications, and T
A
= 25°C for typical specifications, unless otherwise noted.
1
Table 3.
Parameter Symbol Test Conditions/Comments Min Typ Max Unit
INPUT CHARACTERISTICS
Input Voltage Range V
IN1
2.3 5.5 V
OUTPUT CHARACTERISTICS
Output Voltage Accuracy V
OUT1
PWM mode, I
LOAD
= 0 mA to 1200 mA −3 +3 %
Line Regulation (ΔV
OUT1
/V
OUT1
)/ΔV
IN1
PWM mode −0.05 %/V
Load Regulation (ΔV
OUT1
/V
OUT1
)/ΔI
OUT1
I
LOAD
= 0 mA to 1200 mA, PWM mode −0.1 %/A
VOLTAGE FEEDBACK V
FB1
0.485 0.5 0.515 V
PWM TO POWER SAVE MODE
CURRENT THRESHOLD
I
PSM_L
100 mA
INPUT CURRENT CHARACTERISTICS MODE = ground
DC Operating Current I
NOLOAD
I
LOAD
= 0 mA, device not switching,
all other channels disabled
21 35 μA
Shutdown Current I
SHTD
EN1 = 0 V, T
A
= T
J
= −40°C to +125°C 0.2 1.0 μA
SW CHARACTERISTICS
SW On Resistance R
PFET
PFET, AVIN = VIN1 = 3.6 V 180 240 mΩ
PFET, AVIN = VIN1 = 5 V 140 190 mΩ
R
NFET
NFET, AVIN = VIN1 = 3.6 V 170 235 mΩ
NFET, AVIN = VIN1 = 5 V 150 210 mΩ
Current Limit I
LIMIT
PFET switch peak current limit 1600 1950 2300 mA
ACTIVE PULL-DOWN EN1 = 0 V 85 Ω
OSCILLATOR FREQUENCY f
OSC
2.5 3.0 3.5 MHz
1
All limits at temperature extremes are guaranteed via correlation using standard statistical quality control (SQC).